import {defineStore} from "pinia"

// 需要在头部传入路由表并且在用户登录的时候进行此操作
// 引入路由表
import {constantRouterMap, asyncRoutes} from '@/router'

/**
 * 通过meta.role判断是否与当前用户权限匹配，此处也可以根据自己的需求进行修改。比如按位与
 * @param roles  权限
 * @param route  总的路由表
 */
function hasPermission(roles, route) {
  if (route.meta && route.meta.roles) {
    console.log(route.meta, roles.some(role => route.meta.roles.includes(role)))
    return roles.some(role => route.meta.roles.includes(role))
  } else {
    return true
  }
}

/**
 * 递归过滤异步路由表，返回符合用户角色权限的路由表
 * @param routes   需要筛选的路由表
 * @param roles    权限
 */
function filterAsyncRouter(routes, roles) {
  const res = []

  routes.forEach(route => {
    const tmp = {...route}

    if (hasPermission(roles, tmp)) {
      if (tmp.children) {
        tmp.children = filterAsyncRouter(tmp.children, roles)
      }
      res.push(tmp)
    }
  })
  return res
}

export const usePermissionStore = defineStore({
  id: 'permission',
  state: () => ({
    routers: [],
  }),
  actions: {
    GenerateRoutes(roles) {
      return new Promise(resolve => {
        let accessedRouters = []
        // 在这里当是管理员权限时,就给予所有的路由表
        if (roles === 'admin') {
          accessedRouters = asyncRoutes || []
        } else {
          accessedRouters = filterAsyncRouter(asyncRoutes, roles)
        }
        // commit('SET_ROUTES', accessedRoutes)
        this.routers = accessedRouters
        resolve(this.routers)
      })
    },
    ResetRoutes() {
      return new Promise(resolve => {
        this.routers = []
        resolve()
      })
    }
  },
})
